ACT4533A Buck Converter overview

Description

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Sub-Category

ACT4533A is a 38.00 V non-sync Buck Converter from with 3.50 A output current. The maximum 38.00 V input voltage can be regulated down into a 0.82 V to 12.00 V output voltage.

It requires are a typical inductor size of 40.00 µH, a typical external component count of 13 and achieves a peak efficiency of 92 %. Further ACT4533A characteristics are a fixed 125 kHz switching frequency and 1 available package option(s): SOP-8EP .

For the ACT4533A replacement search, please select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

ParameterValueReplacement
Search Filter
V-IN min. 10.00 V
V-IN max. 38.00 V
I-OUT? 3.50 A
V-OUT min. 0.82 V
V-OUT max. 12.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 125 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 1400 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 150 °C
thermal shutdown typ. 155 °C
Inductor size typ. 40.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 92 %
Component count min. 13
current limit adjustable yes
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP SOP-8EP
DIP
TO
DDPAK

ACT4533A Datasheet

Link to the most up-to-date ACT4533A datasheet and the product page for EVM, tools and support information.

ACT4533A

ACT4533A Sample stock and distributor price breaks

ACT4533A prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 1

DIGI-KEY (1)

ProductStockPriceBuy
EA4533AYH1
161.86 USD
Buy Now
ACT4533AYH-T0
40000.45 USD
Buy Now
ACT4533AYH-T0
10.00 USD
Buy Now
ACT4533AYH-T0
10.00 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with ACT4533A stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to ACT4533A. Optional, compare ACT4533A side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% ACT4523A ACT4523A product overviewACT4523A product overview Active Semi SOP-8EP
0% ACT4533B ACT4533B product overviewACT4533B product overview Active Semi SOP-8EP
10% ACT4523 ACT4523 product overviewACT4523 product overview Active Semi SOP-8EP
25% ACT4303 ACT4303 product overviewACT4303 product overview Active Semi SOP-8
25% ACT4533 ACT4533 product overviewACT4533 product overview Active Semi SOP-8EP
50% ACT4513 ACT4513 product overviewACT4513 product overview Active Semi SOP-8
50% LM22673 LM22673 product overviewLM22673 product overview Texas Instruments TO263-7, SO-8
50% LM2673 LM2673 product overviewLM2673 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of ACT4533A.

V-IN max. 38 V, I-OUT 3.5 A, V-OUT min. 0.82 V, Frequency typ. 125 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404084047 4.7 4.1 6.5 19.00 8 x 8 x 4.2
74404084068 6.8 3.6 5.0 24.00 8 x 8 x 4.2
7440650047 4.7 4.6 4.2 16.50 10 x 10 x 3.1
744066005 5.0 4.9 5.5 14.50 10 x 10 x 4.1
7440660062 6.2 4.3 4.5 16.50 10 x 10 x 4.1
744071047 4.7 4.8 4.3 17.00 8 x 8 x 4.6
744311470 4.7 6.0 7.0 19.50 7 x 6.9 x 4
744314490 4.9 6.5 6.5 14.50 7 x 6.9 x 5
744314650 6.5 6.0 6.0 21.50 7 x 6.9 x 5
744314760 7.6 4.2 4.8 30.20 7 x 6.9 x 5
744316470 4.7 4.6 4.7 24.50 5.5 x 5.3 x 4.3
744316560 5.6 4.5 4.6 28.50 5.5 x 5.3 x 4.3
7443340470 4.7 7.5 8.0 12.70 8.4 x 7.9 x 7.5
7443340680 6.8 5.5 7.5 23.30 8.4 x 7.9 x 7.5
7443552560 5.6 6.7 7.5 20.60 10.5 x 10.2 x 4.2
74437336047 4.7 3.5 7.0 50.00 5.7 x 5.2 x 3
7447471047 4.7 6.9 6.0 10.50 10.5 x 10.5 x 11.5
7447471068 6.8 6.4 5.0 11.90 10.5 x 10.5 x 11.5
744750230068 6.8 5.7 8.1 12.20 8.8 x 8.8 x 11
74477005 5.6 8.0 8.2 8.00 12 x 12 x 8
74477007 7.6 7.4 8.0 16.00 12 x 12 x 8
744771004 4.7 8.3 8.0 8.00 12 x 12 x 6
744771006 6.8 5.6 6.0 14.00 12 x 12 x 6
7447713047 4.7 4.0 6.0 26.00 10 x 10 x 3
7447714047 4.7 7.0 8.0 10.40 10 x 10 x 5
7447714056 5.6 6.0 7.2 12.00 10 x 10 x 5
7447714068 6.8 5.2 5.8 18.50 10 x 10 x 5
7447715004 4.7 5.2 6.3 13.50 12 x 12 x 4.5
7447715006 6.8 4.3 4.7 20.00 12 x 12 x 4.5
744772047 4.7 4.0 5.4 11.60 7.8 x 7.8 x 10
744772068 6.8 3.8 6.5 18.50 7.8 x 7.8 x 10
7447797470 4.7 6.2 8.0 17.30 10.2 x 10.2 x 4.5
7447797620 6.2 5.7 7.4 19.80 10.2 x 10.2 x 4.5
7447798470 4.7 9.5 7.6 7.40 10.2 x 10.2 x 6.4
7447798620 6.2 9.4 6.7 8.40 10.2 x 10.2 x 6.4
7447798720 7.2 7.9 6.0 11.30 10.2 x 10.2 x 6.4
784771047 4.7 6.2 8.0 14.50 12 x 12 x 8.3
784771068 6.8 5.5 6.0 18.00 12 x 12 x 8.3
784775047 4.7 4.5 4.5 16.00 7 x 7.8 x 5.5
784776047 4.7 5.0 6.0 12.00 9 x 10 x 5.9
784776056 5.6 4.8 5.5 15.00 9 x 10 x 5.9
784776068 6.8 4.4 5.0 16.00 9 x 10 x 5.9
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